Episode Guide

Season 3 Episode 12:

Toxic Cloud

A toxic chemical cloud from an industrial accident could jeopardize an entire community within minutes, putting the lives of thousands of people at risk; a cargo ship carrying ammonia nitrate explodes, killing 500 people in Texas in 1947.

Season 3 Episode 11:

Deadly Jet Collision

A scenario demonstrates the potential for disaster from a "runway incursion" at a busy airport; 583 people are killed when two airliners collide in the Canary Islands in 1977; 34 people die when two planes collide in Los Angeles in 1991.

Season 3 Episode 10:

Airborne Attack

Season 3 Episode 9:

Prehistoric English Superflood

A new theory suggests that a megastorm caused one of the largest floods in the history of the planet, creating the English Channel and turning Britain into an island separated from the continent of Europe.

Comet Storm

Season 3 Episode 7:

Atlantis Apocalypse

Scientists speculate about a repeat of an Aegean Sea incident, as when a huge volcanic eruption on Santorini 3,500 years ago caused a tsunami that wiped out Minoan civilization on Crete and prompted the Atlantis myth.

Season 2 Episode 11:

Oil Apocalypse

Season 2 Episode 10:

Super Swarms

Entomologists try to comprehend and control destructive swarms of locusts that have been plaguing mankind throughout history; American pioneers endure a swarm estimated as being 1,800 miles long and 110 miles wide.